This is absurd! It should be so easy to simply bookmark a page and choose which folder you want it to appear in. This used to work in Opera! Now I only see a bunch of folders that are NOT mine even though the title is "My Folders." Who knows where Opera saves the bookmark to - I have not been able to figure out where. I ditched Chrome in favor of Opera because it is lighter, but now I cannot save any new bookmarks. I will try the suggestions above but it is so absurd that the Opera developers cannot include a functional bookmark option in the latest versions!